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Medium

Spring Framework Denial of Service via Unbounded Cache in SpEL

  • Disclosed: 09.06.2026
  • Updated: 11.10.2026 13:20

Applications which accept user-supplied Spring Expression Language (SpEL) expressions may be vulnerable to a Denial of Service (DoS) attack if the evaluation of a SpEL expression triggers unbounded cache growth.

Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) org.springframework:spring-expression >= 7.0.0, < 7.0.8, >= 6.2.0, < 6.2.19, >= 6.1.0, <= 6.1.21, <= 5.3.39 7.0.8, 6.2.19

References

CVSS score 5.3/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness (CWE)
CWE-770
Platform
Java / Kotlin (Maven)
Package
org.springframework:spring-expression
Disclosed
09.06.2026
Updated
11.10.2026 13:20

Sources and licenses

OSV / GitHub Advisory Database - GHSA-wxpp-56q6-5pcg - CC BY 4.0

Vulnerability history: org.springframework:spring-expression

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
8
First → latest
04.2022 06.2026
Without a fix
1
Exploited in attacks
0

Severity breakdown

  • High 3
  • Medium 4
  • Low 1

Disclosures per year

  1. Spring Framework Denial of Service via Unbounded Cache in SpEL this entry
    Medium · 5.3 CVE-2026-41851 >= 7.0.0, < 7.0.8, >= 6.2.0, < 6.2.19, >= 6.1.0, <= 6.1.21, <= 5.3.39 7.0.8, 6.2.19
  2. Spring Framework Algorithmic Denial of Service via SpEL Expressions
    High · 7.5 CVE-2026-41850 >= 7.0.0, < 7.0.8, >= 6.2.0, < 6.2.19, >= 6.1.0, <= 6.1.21, <= 5.3.39 7.0.8, 6.2.19
  3. Spring Framework Arbitrary Method Invocation in SpEL Expressions
    Low · 3.7 CVE-2026-41852 >= 7.0.0, < 7.0.8, >= 6.2.0, < 6.2.19, >= 6.1.0, <= 6.1.21, <= 5.3.39 7.0.8, 6.2.19
  4. Spring Framework Denial of Service via Integer Overflow in SpEL Expressions
    High · 7.5 CVE-2026-41849 <= 5.3.39 no fix
  5. Spring Framework vulnerable to Denial of Service
    Medium · 4.3 CVE-2024-38808 < 5.3.39 5.3.39
  6. Spring Framework vulnerable to denial of service
    High · 7.5 CVE-2023-20863 >= 6.0.0, < 6.0.8, >= 5.3.0, < 5.3.27, < 5.2.24.RELEASE 6.0.8, 5.3.27, 5.2.24.RELEASE
  7. Spring Framework vulnerable to denial of service via specially crafted SpEL expression
    Medium · 6.5 CVE-2023-20861 >= 6.0.0, < 6.0.7, >= 5.3.0, < 5.3.26, < 5.2.23.RELEASE 6.0.7, 5.3.26, 5.2.23.RELEASE
  8. Allocation of Resources Without Limits or Throttling in Spring Framework
    Medium · 6.5 CVE-2022-22950 >= 5.3.0, < 5.3.17, < 5.2.20.RELEASE 5.3.17, 5.2.20.RELEASE

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